For over two centuries, we have watched the red giant R Leonis dim and brighten with regularity, but this 'heartbeat' is ...

Look up at the sky on a clear night, and you’ll see thousands of stars – about 6,000 or so. But that’s only a tiny fraction of all the stars out there. The rest are too far away for us to see them.

Welcome to the Tuesday Telescope. There is a little too much darkness in this world and not enough light—a little too much pseudoscience and not enough science. We'll let other publications offer you ...

On April 14, 2025, six prominent women soared into space aboard Blue Origin’s New Shepard rocket. The mission, NS-31, marked the first all-female crewed spaceflight since 1963 — a notable milestone in ...

Hubble’s latest view of N159 captures newborn stars igniting, glowing, and blasting bubbles into a vast cosmic nursery.

Nearly all stars are found inside or around galaxies, but there are ways for stars to escape into intergalactic space.